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Description

GLAH06 Level-1B Global Elevation is a product that is analogous to the geodetic data records distributed for radar altimetry missions. It contains elevations previously corrected for tides, atmospheric delays, and surface characteristics within the footprint. Elevation is calculated using the ice sheet parameterization. Additional information allows the user to calculate an elevation based on land, sea ice, or ocean algorithms. Each data granule has an associated browse product.

Version Description

Release 34 incorporates fixes for several data issues that were determined to exist in the GLAS Release 33 data products.

Product Summary

Platforms
ICESat
Instruments
ALTIMETERS ,
CD ,
GLAS ,
GPS ,
GPS Receiver ,
LA ,
PC
Spatial Extent

N: 86 S: -86 E: 180 W: -180

Spatial Resolution
60 Meters to 70 Meters x 60 Meters to 70 Meters
Spatial Reference System(s)
ITRF2008 (EPSG:5332)
Location
GLOBAL
Coordinate System
CARTESIAN
Granule Spatial Representation
ORBIT
Temporal Extent
2003-02-20 to 2009-10-11
Temporal Resolution
23 Minute
Concept ID
C2033638023-NSIDC_CPRD
Data State
COMPLETE
Number of Files/Granules
34208
Processing Level
1B
Published
Science Keywords
Glacier Elevation/Ice Sheet Elevation ,
Glacier Topography/Ice Sheet Topography ,
Ice Roughness ,
Ice Sheets ,
Reflectance ,
Sea Surface Height ,
Sea Surface Slope ,
Surface Roughness ,
Terrain Elevation

Citation

Citation is critically important for dataset documentation and discovery. This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use and Citation Guidance.

Copy Citation

Zwally, H., Schutz, R., Dimarzio, J., & Hancock, D. (2014). GLAS/ICESat L1B Global Elevation Data (HDF5), Version 34 [Dataset]. NASA National Snow and Ice Data Center Distributed Active Archive Center. https://doi.org/10.5067/ICESAT/GLAS/DATA109 Date Accessed: 2026-09-11

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